I'm an aspiring writer too and I think we're in a very interesting moment for serialized novels. Charles Dickens published serially. Not that that means it's a fool-proof idea. I'm just fascinated that circumstances repeat themselves.

I was toying with the idea of publishing some teaser chapters (like the first 5 for free) on Steemit and then selling the full book self-published on Amazon. Or alternatively, having 5 free teaser chapters and then directing people to a patreon type site where a certain per month donation gets access to the rest of the book. Have you considered options like that?